A pair arrested June 11 on child sex charges received more charges Thursday as the Wichita Falls Police Department continues their investigation.

Morris Taylor, 64, and Jernerikae Oliver, 19, were arrested at addressed less than a half mile from each other and both face aggravated sexual of a child charges. Taylor also faces three counts of possession/promotion of child pornography.

Taylor was charged with six additional counts of aggravated sexual assault of a child Thursday with bail set at $500,000 each and Oliver received one additional count of aggravated sexual assault of a child with bail set at $500,000.

Taylor's bonds now total $4.25 million and Oliver's bonds total $1.3 million.

The WFPD investigation began in September and police suspect multiple children were victims of Taylor and Oliver.

According to the arrest warrant affidavits:

The investigation began Sept. 29 after allegations of sexual abuse of three young girls. The suspect was named as Taylor, and he was identified through a photo lineup. A 10-year-old girl provided detailed disclosures in a forensic interview at Patsy's House Children's Advocacy Center.

The offense allegedly occurred the night of Sept. 28 while girls were sleeping at Taylor's home. The 10-year-old provided information indicating she was raped and said Taylor took pictures of her and her two younger siblings' private parts. The other girls were 6 and 4 years old at the time.

The 10-year-old said Taylor gave her a pill when she complained about having a toothache. The pill was later identified through a urine sample as clonazepam, the generic name for Klonopin, a seizure medication that can cause confusion and hallucinations.

A search warrant for Taylor's home was executed on May 22, and multiple items were taken as evidence. Sexually explicit photographs of the three young girls were found as well as a prescription for clonazepam and other items described by the victim, corroborating her account of the incident.

Lewd photographs found at the residence depicted the 6-year-old while she slept on an air bed. The affidavit notes 48 images were found of the three young girls.

More pictures of another 4-year-old from May 2013 were found at the residence and depicted Oliver participating in sexual acts with the 4-year-old.